Finding the Fourth Proportional to 80,775,094.80, 121,162,642.20 and 48,526,467.60
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Solution
The fourth proportional to 80,775,094.80, 121,162,642.20 and 48,526,467.60 is: 72,789,701.40
Step by Step Solution
- Step 1: Write the proportion equation
80,775,094.80 : 121,162,642.20 = 48,526,467.60 : x - Step 2: Convert to fraction form
80,775,094.80/121,162,642.20 = 48,526,467.60/x - Step 3: Cross multiply
80,775,094.80x = 121,162,642.20 × 48,526,467.60 - Step 4: Simplify right side
80,775,094.80x = 5,879,595,031,048,693 - Step 5: Solve for x
x = 5,879,595,031,048,693/80,775,094.80 - Step 6: Final answer
x = 72,789,701.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.